Telegraph		File Size	Date
American Telegraph Practice; a complete technical course in modern telegraphy	McNicol, Donald Monroe	75 MB	1913
American Telegraphy and Encyclopedia of the Telegraph	Maver, William, Jr.	116 MB	1903
The Electric Telegraph Popularized	Lardner, Dionysius	39 MB	1867
The Electric Telegraph	Sabine, Robert	69 MB	1867
The Electric Telegraph Popularised... with 100 illustrations	Lardner, Dionysius	25 MB	1859
History of the Atlantic Telegraph	Field, Henry M.	29 MB	1867
Propagation of Electric Currents in Telephone & Telegraph Conductors	Fleming, J. A. (John Ambrose), Sir	42 MB	1911

Wireless and Radio		File Size	Date
Notes on Servicing Radio and Sound Equipment	United States Navy	(link)	1942
The ABCs of Vacuum Tubes in Radio Reception	Lewis	14 MB	1922
The ABC of Wireless Telegraphy; a plain treatise on Hertzian wave signaling; embracing theory, methods of operation, and how to build various pieces of the apparatus employed	Trevert, Edward	9 MB	1904
The Elementary Principles of Wireless Telegraphy	Bangay, R. D.	16 MB	1914
The Elementary Principles of Wireless Telegraphy	Bangay, Raymond Dorrington	15 MB	c1918
Elements of radio telephony	Ballard, William Cyrus, Jr	14 MB	1922
Experimental Wireless Stations: their theory, design, construction and operation including wireless telephony and quenched spark systems : a complete account of sharply tuned modern wireless installations for experimental purposes which comply with the new wireless law	Edelman, Philip E.	30 MB	1915
Five of Maxwell's Papers Five of Maxwell's Papers	Maxwell, James Clerk	102 KB	1856
A History of Wireless Telegraphy, 1838-1899: including some bare-wire proposals for subaqueous telegraphs	Fahie, J. J.	36 MB	1899
How to Make a Wireless Set	Moreton, David Penn	7 MB	1911
Modern Radio	Tyler, Kingdon S.	38 MB	c1944
The Oscillation Valve, the Elementary Principles of its Application to Wireless Telegraphy	Bangay, Raymond Dorrington	19 MB	1919
Practical Wireless Telegraphy; a complete text book for students of radio communication	Bucher, Elmer Eustice	54 MB	c1917
Radio for All	Gernsback, Hugo	25 MB	1922
A Treatise on Electricity and Magnetism (Volume 1)	Maxwell, James Clerk	52 MB	1873
A Treatise on Electricity and Magnetism (Volume 2)	Maxwell, James Clerk	46 MB	1881
The Life of James Clerk Maxwell : with a selection from his correspondence and occasional writings and a sketch of his contributions to science	Campbell, Lewis	75 MB	1882
James Clark Maxwell and Modern Physics	Glazebrook, Richard, Sir,	15 MB	1896
A Modern Campaign; or, War and Wireless Telegraphy in the Far East	Fraser, David	40 MB	c1905
Ætheric or Wireless Telegraphy	Blaine, Robert Gordon	20 MB	1905
Hertzian Wave Wireless Telegraphy	Fleming, J. A.	19 MB	1905
Practical Uses of the Wave Meter in Wireless Telegraphy	Mauborgne, Joseph Oswald	17 MB	1913
Principles of Wireless Telegraphy	Pierce, George Washington	53 MB	1910
Radio: Beam and Broadcasts - Its Story and Patents	Morse, A.H.	11 MB	1925
Radio-Telephone for Everyone; The Wireless: How to Construct and Maintain Modern Transmitting and Receiving Apparatus	Cockaday, Laurence Marsham	23 MB	c1922
Signalling Across Space Without Wires: being a description of the work of Hertz & his successors	Lodge, Oliver, Sir	28 MB	1911
Vacuum Tubes in Wireless Communication, a practical text book for operators and experimenters	Bucher, Elmer Eustice	38 MB	c1919
A Treatise Upon Wireless Telegraphy and Telephony	Hoppough, C. I.	33 MB	c1912
The Wireless Operators' Pocketbook of Information and Diagrams	Bishop, L. Wilbur	18 MB	1911
Wireless Possibilities	Low, A. M	7 MB	c1924
The Wireless Telegraphist's Pocket Book of Notes, Formulæ, and Calculations	Fleming, J. A.	22 MB	1915
Wireless Telegraphy	Fortescue, Cecil Lewis	14 MB	1913
Wireless Telegraphy: its origins, development, inventions, and apparatus	Sewall, Charles Henry	31 MB	1904
Wireless Telegraphy and Wireless Telephony - an Elementary Treatise	Kennelly, Arthur E.	24 MB	1913
Wireless Telegraphy; Its History, Theory and Practice	Collins, A. Frederick	57 MB	c1905
Wireless Telegraphy and Wireless Telephony (Reprint of sections from practical physics)	Millikan, Robert Andrews	2 MB	1922
Wireless telegraphy and wireless telephony: an understandable presentation of the science of wireless transmission of intelligence	Ashley, Charles Grinnell	25 MB	1912
Wireless Telegraphy and High Frequency Electricity; a manual containing detailed information for the construction of transformers, wireless telegraph and high frequency apparatus, with chapters on their theory and operation	Twining, Harry La Verne	19 MB	c1909
Wireless Telegraphy	Zenneck, Jonathan Adolf Wilhelm	70 MB	1915
Wireless Telegraphy Vol. I (Text book)	Stanley,Rupert	47 MB	1919
Wireless Telegraphy and Hertzian Waves	Bottone, Selimo Romeo	14 MB	1910
Wireless Telegraphy and Telephony Simply Explained	Morgan, Alfred Powell	27 MB	1913
Wireless Telephones and How They Work	Erskine-Murray, James	10 MB	1910
Wireless Telephony, in Theory and Practice	Ruhmer, Ernst Walter	34 MB	1908
Wireless Transmission of Photographs	Martin, Marcus J	18 MB	1916
Wireless Possibilities	Low, A. M.	7 MB	1924
Wireless Telegraphy	Eichhorn, Gustav	27 MB	1906
The Wireless Experimenters Manual	Bucher	57 MB	1920
The Wonders of Wireless Telegraphy Explained in Simple Terms for the Non-Technical Reader	Fleming, John Ambrose	26 MB	1914
Modern radio	Tyler	37 MB	1944
Modern radio reception	Leutz, Charles Roland	59 MB	1928
The Radio Amateur's Hand Book	Collins, A. Frederick		1922
Radio Telephony	Goldsmith, Alfred Norton	38 MB	c1918
Radio in Wartime	Dryer, Sherman Harvard	39 MB	c1942

Telephone		File Size	Date
The Telephone, the Microphone and the Phonograph	Du Moncel, Th., comte	30MB	1879
Propagation of Electric Currents in Telephone & Telegraph Conductors	Fleming, J. A. (John Ambrose), Sir	42 MB	1911

Television		File Size	Date
Vision by Radio	Jenkins	15 MB	1925
ABC of Television (or Seeing by Radio)	Yates	27 MB	1929
An Introduction to Television	Hylander	34 MB	1941
Electronic Television	Eckhardt	122 MB	1936
Experimental Television; a series of simple experiments with television apparatus; also how to make a complete home television transmitter and television receiver	Collins	40 MB	1932
Here is Television: Your Window to the World	Hutchinson	45 MB	1948
Movies for TV	Battison	43 MB	1950
Oscillographs	Irwin	4 MB	1925
Practical Television	Larner	22 MB	1928
Telecasting and Color	Tyler	28 MB	1946
Television - Writers' Program of the Work Projects Administration in the Commonwealth of Pennsylvania	WPA	6 MB	1942
Television Primer of Production and Direction	Sposa	30 MB	1947
Television Standards and Practice; selected papers from the Proceedings of the National television system committee and its panels	National Television System Committee	51 MB	1943
Television the Revolutionary Industry	Lee	15 MB	1944
Television, its Methods and Uses	Felix	30 MB	1931
Television,the Eyes of Tomorrow	Eddy	59 MB	1945
Television ; a practical treatise on the principles upon which the development of television is based	Hathaway	23 MB	1933
Television; present methods of picture transmission	Sheldon	24 MB	1929
The Boyhood of an Inventor	Jenkins	39 MB	1931
The Fundamentals of Television	Bolan	35 MB	1950
The Miracle of Television	Gable	22 MB	1949
The Outlook for Television	Dunlap	39 MB	1932
The Story of Television, the life of Philo T. Farnsworth	Everson	28 MB	1949
The Victory of Television	Kerby	16 MB	1939
Understanding Television	Dunlap	22 MB	1948

Phonograph		File Size	Date
The Telephone, the Mmicrophone and the Phonograph	Du Moncel, Th., comte	30 MB	1879

Miscellaneous		File Size	Date
Experimental Researches in Electricity, Volume 1	Faraday, Michael	1.5 MB	1838
Experiments with Alternate Currents of High Potential and High Frequency	Nikola Tesla	1 MB	1892
How to Signal to Mars: Wireless the Only Way Now, says Nicola Tesla - Mirror plan not practicable	Nikola Tesla	1 MB	1909
Man of High Fidelity - Edwin Howard Armstrong	Lessing, Lawrence	15 MB	1956
Edison and His Inventions	McClure, J. B	23 MB	1889
Marconi - The Man and His Wireless	Dunlap, Orrin Elmer	55 MB	1937
Manual of Electricity: including galvanism, magnetism, diamagnetism, electro-dynamics, magneto-electricity, and the eletric telegraph (Volume 12) (1859)	Noad, Henry Minchin	121 MB	1859
Modern Views of Eectricity	Lodge, Oliver, Sir	61 MB	1907
Electric Discharges,Waves And Impulses	Charles Proteus Steinmetz	12 MB	1914
The Telegraph Boy	Alger, Horatio	22 MB	1888
««« Juvenile Books" »»»
The Radio Boys' First Wireless	Chapman, Allen	260 KB	1922
Radio Boys Cronies	unknown	219 KB	unk.
The Radio Boys in the Thousand Islands	Duffield, J. W.	274 KB	1922
The Radio Boys on the Mexican Border	Breckenridge, Gerald	347 KB	unk.
Tom Swift and His Wireless Message	Appleton, Victor		1911
Tom Swift and His Photo Telephone	Appleton, Victor	248 KB	unk.
The Wireless Station at Silver Fox Farm	Otis, James	17 MB	1910
The Young Wireless Operator-As a Fire Patrol	Theiss, Lewis E.	502 KB	1921
The Boy Inventors' Radio Telephone	Bonner, Richard	313 KB	unk.

Radio Magazines		File Size	Date
World Radio History
The World Radio History website is a huge archive with thousands of radio-related books and magazines, including the entire print run of Radio News, Radio-Craft and others.  You could spend a lifetime or two reading everything here.
Radio Broadcast	(Courtesy of Microsoft)
Volume 1: May 1922 - Oct. 1922	Doubleday, Page & Company	74 MB	1922
Volume 2: Nov. 1922 - Apr. 1923	Doubleday, Page & Company	78 MB	1922
Volume 3: May 1923 - Oct. 1923	Doubleday, Page & Company	80 MB	1923
Volume 4: Nov. 1923 - Apr. 1924	Doubleday, Page & Company	77 MB	1923
Volume 5: May 1924 - Oct. 1924	Doubleday, Page & Company	78 MB	1924
Volume 6: Nov. 1924 - Apr. 1925	Doubleday, Page & Company	82 MB	1924
Volume 7: May 1925 - Oct. 1925	Doubleday, Page & Company	85 MB	1925
Volume 8: Nov. 1925 - Apr. 1926	Doubleday, Page & Company	77 MB	1925
Volume 9: May 1926 - Oct. 1926	Doubleday, Page & Company	71 MB	1926
Volume 10: Nov. 1926 - Apr. 1927	Doubleday, Page & Company	72 MB	1926
Volume 11:May 1927 - Oct. 1927	Doubleday, Page & Company	56 MB	1927
Volume 12: Nov. 1927 - Apr. 1928	Doubleday, Page & Company	56 MB	1927
Volume 13:May 1928 - Oct. 1928	Doubleday, Page & Company	53 MB	1928
Volume 14: Nov. 1928 - Apr. 1929	Doubleday, Page & Company	54 MB	1928
Volume 15: May 1929 - Oct. 1929	Doubleday, Page & Company	63 MB	1929
Volume 16: Nov. 1929 - Apr. 1930	Doubleday, Page & Company	55 MB	1929